Have YOU Run 5x100 and had Failure First Hand?

Just buy rims that actually fit the car, they are available. Even if NO ONE here has personally had a failure, it doesn't mean it can't happen.

Do you want there to be any additional chance that the wheel studs on your daughter's car will shear off while she's driving because the lugs were side stressed by the tapered lug nuts pulling them from a 5x4" pattern in to a 5x100?

Maybe its just the 4 years of engineering school talking, but there's no way in hell I'd mess with it. Regardless of how many anecdotal "Ive done it for x number of years without an issue" stories you might get.

Just my opinion.